package com.wifi.a007.wifiFragment;

import android.app.ProgressDialog;
import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.VelocityTracker;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;


import com.wifi.a007.R;
import com.wifi.a007.ViewName;
import com.wifi.a007.db.City;
import com.wifi.a007.db.County;
import com.wifi.a007.db.Province;
import com.wifi.a007.utile.HttpUtil;
import com.wifi.a007.utile.Utility;

import org.litepal.crud.DataSupport;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.Response;

/**
 * Created by Administrator on 2017/7/6.
 */

public class ChooseAreaFragment extends Fragment {

    public static  final int LEVEL_PROVINCE=0;
    public static  final int LEVEL_CITY=1;
    public static  final int LEVEL_COUNTY=2;
    private ProgressDialog progressDialog;
    private TextView titleText;
    private Button backButton;
    private ListView listView;
    private ArrayAdapter<String> adapter;
    private List<String> dataList = new ArrayList<>();
    private List<Province> provinceList;
    private List<City> cityList;
    private List<County> countyList;
    private Province selectedProvince;
    private City selectedCity;
    private int currentLevel;

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {

         View view =inflater.inflate(R.layout.choose_area,container,false);
        titleText =(TextView)view.findViewById(R.id.title_text);
        backButton=(Button)view.findViewById(R.id.back_button);
        listView  =(ListView)view.findViewById(R.id.list_view);
        adapter = new ArrayAdapter<String>(getContext(), R.layout.weather_listview_layout,dataList);
        listView.setAdapter(adapter);




        return view;
    }


    @Override
    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);


        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

                if (currentLevel == LEVEL_PROVINCE) {

                    selectedProvince = provinceList.get(position);
                    queryCities();
                } else if (currentLevel == LEVEL_CITY) {

                    selectedCity = cityList.get(position);
                    queryCounties();
                }else if (currentLevel == LEVEL_COUNTY){

                    String weatherId =countyList.get(position).getWeatherId();


                        WeatherFragment activity= (WeatherFragment) getParentFragment();
                        activity.drawerLayout.closeDrawers();
                        activity.swipeRefresh.setRefreshing(true);
                        activity.requestWeather(weatherId);

                }

            }
        });

        backButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (currentLevel == LEVEL_COUNTY) {

                    queryCities();
                } else if (currentLevel == LEVEL_CITY) {
                    queryProvinces();
                }
            }
        });

        queryProvinces();

    }
        private  void queryProvinces(){

            titleText.setText("中国");
            backButton.setVisibility(View.GONE);
            provinceList= DataSupport.findAll(Province.class);
            if(provinceList.size()>0) {

                dataList.clear();
                for (Province province : provinceList) {

                    dataList.add(province.getProvinceName());
                }

                adapter.notifyDataSetChanged();
                listView.setSelection(0);
                currentLevel = LEVEL_PROVINCE;
            }else {

                String address= "http://guolin.tech/api/china";
                queryFromServer(address,"province");

            }



        }//end Function

    private  void queryCities(){

        titleText.setText(selectedProvince.getProvinceName());
        backButton.setVisibility(View.VISIBLE);
        cityList= DataSupport.where("provinceid = ?", String.valueOf(selectedProvince.getId())).find(City.class);
        if(cityList.size() > 0){

            dataList.clear();
            for(City city : cityList){

                dataList.add(city.getCityName());
            }

            adapter.notifyDataSetChanged();
            listView.setSelection(0);
            currentLevel=LEVEL_CITY;

        }else{

            int provinceCode=selectedProvince.getProvinCode();
            String address = "http://guolin.tech/api/china/"+provinceCode;
            queryFromServer(address,"city");

        }
    }


    private  void queryCounties(){

        titleText.setText(selectedCity.getCityName());
        backButton.setVisibility(View.VISIBLE);
        countyList= DataSupport.where("cityid = ?", String.valueOf(selectedCity.getId())).find(County.class);
        if(countyList.size() > 0){

            dataList.clear();
            for(County county:countyList){

                dataList.add(county.getCountyName());
            }

            adapter.notifyDataSetChanged();
            listView.setSelection(0);
            currentLevel=LEVEL_COUNTY;
        }else{

            int provinceCode = selectedProvince.getProvinCode();
            int cityCode = selectedCity.getCityCode();
            String address = "http://guolin.tech/api/china/"+provinceCode+"/"+cityCode;
            queryFromServer(address,"county");

        }
    }

    private void queryFromServer(String address, final String type){


        showProgressDialog();
        HttpUtil.sendOkHttpRequest(address, new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {

                getActivity().runOnUiThread(new Runnable() {


                    public void run(){

                        closeProgressDialog();
                        Toast.makeText(getContext(),"加载失败", Toast.LENGTH_SHORT).show();

                    }

                });




            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {

                String responseText=response.body().string();
                boolean result =false;
                if("province".equals(type)){

                    result= Utility.handleProvinceResponce(responseText);

                }else if("city".equals(type)){

                    result=Utility.handleCityResponse(responseText,selectedProvince.getId());
                }else if("county".equals(type)){

                    result=Utility.handleCountyResponse(responseText,selectedCity.getId());


                }

                if(result){

                    getActivity().runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            closeProgressDialog();

                            if("province".equals(type)){

                                queryProvinces();
                            }else if("city".equals(type)){

                                queryCities();
                            }else if("county".equals(type)){

                                queryCounties();
                            }
                        }
                    });


                }
            }
        });
    }


    private void  showProgressDialog(){

        if(progressDialog == null){

            progressDialog = new ProgressDialog(getActivity());
            progressDialog.setMessage("正在加载.......");
            progressDialog.setCanceledOnTouchOutside(false);
        }

        progressDialog.show();
    }

    private void closeProgressDialog(){

        if(progressDialog != null){

            progressDialog.dismiss();
        }
    }


}//end class
